What is the delivery time?

Standard parts take 7-15 days, while non-standard parts take 15-25 days. We aim to deliver as soon as possible while guaranteeing quality.

How to order custom-made parts?

Send your new product drawing or sample to us. We will custom-make the hardware according to your requirements and provide professional advice to maximize performance.

Which mode of transport is recommended?

Since production items are often heavy, we generally advise delivery by sea, but we respect your views and can arrange other transportation methods as well.

M18 ASTM A307 Grade B Heavy Hex Bolt and Nut

Name: M18 ASTM A307 Grade B Heavy Hex Bolt and Nut
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 1968184615

Shanghai, ChinaShanghai G&T Industry Co., Ltd.

US$0.01-0.10

1,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

Hex bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Size

M6, M8, M10, M12, M20, M48

Coating

Plain,Black Oxide, Zinc Plated(Clear/Blue/Yellow/B

Diameter

M6, M8, M10, M12, M20, M48, 1/2"

Length

10, 20, 40, 60, 1"

Lead Time

15-60 Days

Sample

Accepted

Using

Right Hand Threads

Surface Treatment

Zinc Plated, Black Oxide, Copper Plating...

Thread

Full Threaded

Payment Term

Tt 50% Deposit

Area

Industry, Machine, Building

Production

Standard/Customized

Packing

Carton and Pallet

Shipping Method

Express, Air, Sea, Train

Head Type

Hex Head, Hex Socket Head, Flange Head

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

1/4"-4", M4-M100

Trademark

G&T

Origin

Shanghai, China

Production Capacity

1000 Tons/Month

Key features

Wide Customization Options: Supports custom sizes, coatings, and non-standard parts based on drawings or samples.

High Precision Manufacturing: Strictly follows drawing tolerances to ensure high precision for custom hardware parts.

ISO 9001 Quality Control: Processes adhere to ISO9001:2008 standards with strict quality control from production to delivery.

Fast Delivery for Standard Parts: Standard parts delivered within 7-15 days; non-standard parts within 15-25 days.

Comprehensive Material Selection: Available in Carbon Steel, Alloy Steel, Stainless Steel, and Brass with various finishes.

One-Stop Shopping Service: Provides fasteners, test reports, and technical support with competitive pricing.

Flexible Payment Terms: Accepts T/T, L/C, West Union, and PayPal with flexible deposit and balance options.

Extensive Industry Application: Suitable for structural steel, oil & gas, wind energy, automotive, and machinery industries.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceFast DeliveryManagement Certification

Shanghai G&T Industry Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.77h

AI-Powered supplier vetting

SummaryShanghai G&T Industry Co., Ltd. is identified as a limited trading company offering bolts, nuts, threaded rods, stud bolts, and customized fasteners. The supplier reports broad customization, ODM capability, new products launched during the past year, and OEM service for well-known brands. Stated annual productivity includes 6,000 tons of thread rods, 5,000 tons of bolts, 5,000 tons of nuts, 3,000 tons of washers, and 3,000 tons of stud bolts. Service procedures include documented supplier assessment, corrective and preventive actions, and customer complaint handling, with lead times within 15 workdays in both peak and off-season. However, the supplier has no overseas agents or branches, overseas warehouse, showroom, or inventory capability. Raw-material traceability, quality assurance status, outsourcing controls, and contract status are unknown. An audit by TUV Rheinland is recorded, but the audit type and evaluation result are not sufficiently interpretable from the provided values.

Supplier typeThe supplier is a limited company classified as a trading company, with a stated business scope covering metal materials, hardware, machinery, and related products. Its offered products are bolts, nuts, threaded rods, stud bolts, and customized fasteners, and it is not identified as part of a larger company group.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaint handling. It has no overseas agents or branches, overseas warehouse, showroom, or in-stock service capability, which limits local and immediate after-sales support.

R&D capabilityThe supplier reports new products during the past year, ODM service, and multiple design-based customization options. It does not have an available SDK, but the available evidence supports product development and design capability.

Production capacityReported annual productivity is 6,000 tons of thread rods, 5,000 tons each of bolts and nuts, and 3,000 tons each of washers and stud bolts. Lead time is stated as within 15 workdays in both peak and off-season; however, the supplier also reports no inventory capability, while outsourcing procedures and manufacturing-capacity contracts remain unknown.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its product scope also expressly includes customized fasteners, and it reports ODM capability.

Product Q&A

Q:Why choose your company?

We provide first-class service, high-quality fasteners, competitive prices, and professional technical support to minimize costs and build long-term partnerships.

Q:How is product quality ensured?

All processes strictly adhere to ISO9001:2008 procedures with strict quality control from production to delivery, supported by strong technology and experienced management.

Q:Can you produce non-standard parts?

Yes, you can send pictures, drawings, or samples, and we will develop new models or custom-made hardware specifically for your requirements.

Q:Do you follow drawing tolerances?

Yes, we can strictly follow the tolerance on your drawing and provide high precision parts as per your design specifications.

Q:What are the payment terms?

We accept T/T, L/C, West Union, and PayPal. For production, a 30% deposit is required before production, with the balance paid before shipment.